Maxmessagesize Option

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The maxmessagesize option (available under http and imap) specifies a maximum message size for the relevant server.

Use with http

The maxmessagesize MSHTTP option specifies the maximum message size (in bytes) client is allowed to send through MSHTTP. Note that the SMTP server to which the message is submitted may also impose its own, separate size limit.

See also the maxpostsize MSHTTP option.


The default value in this context is: 5242880


See also:

Use with imap

The maxmessagesize IMAP option specifies the maximum message size (in bytes) that IMAP clients are allowed to save via the append command. A legacy configutil option, service.imap.maxmessagesize is introduced in 8.0.2.1.


The default value in this context is: 4294967295


See also:


See also: